Spark-arrester.



A. E. HUDSONL SPARK ARRESTER. APPLICATION mm JULY is. 1916.

1,223,388. Patentd Apr. 24,1917.

2 SHEETS-SHEET l- A.E.HUDSON. v

SPARK ARRESTER.

APPLlCATlON FILED JULY 1a. 1916.

Patented Apr. 24, 1917.

2 SHEETS-SHEET 2.

UNITED STATES PATENT oFFioE.

ALBERT EDMUND HUDSON, or TORONTO, ONTARIO, CANADA, ASSIGNQR or ONE-THIRDT HENRY BUSH SPENCER ANDONE-THIRD TO ROBERT HUDSON, BOTH or OTTAWA,

ONTARIO, CANADA.

SPARK-ARRESTER.

To all whom it may concern:

Be it known that I, ALBERT EDMUND HU soN, a subject of theKingof GreatBritain, and resident of the city ofToronto, Province ofOntario,Dominion of Canada, have in vented certain new and useful Improvementsin Spark-Arresters, of which the following is the specification. v

This invention relates to improvements in spark arresters particularlyadapted for use in locomotives and the like, and the objects of theinvention are to facilitate in assembling the arrester andoperativelymounting the same on a locomotive, to render the repair, tosimplify the construction and generally to adapt the severalv parts tobetter perform the functions required of them.

With the above and other objects in view the invention consistsessentially of the improved construction particularly described and setforth in the following specification and accompanying drawings formingpart of the same.

In the drawings,

Figure 1 is a longitudinal sectional el'e-' vation of a boiler embodyingthe present invention.

Fig. 2 is a transversesection of the same.

Fig. 3 is a fragmentary longitudinal sectional plan view of a boilerembodying the present invention. I

Fig. 4 is a transverse section through a pair of baflie plates. I v IFig. 5 is a fragmentary front elevation of one of the baflie platesshowing the means for supporting the same.

Like characters of reference refer 'to like parts in the severalfigures.

Referring to the drawings, A represents a locomotive boiler of usualconstruction having a smoke stack 11 mounted on the top of the smoke box10 which carriesa bafiie wall 12 extending transversely across the frontof the tube plate, 13 and provided at the upper edge with an locatedadjacent to'the Smokestack.

This baffle plate extends downwardly for about two-thirds of thediameter of the smoke box, when it is offset outwardly in asubstantially V-shaped portion 15 provided with a downwardly extendingflange 16, the portion 15 being provided with an orifice 17therethrough, with which the upper end of the, conduit 18 engages.

Specification of Letters Patent.

Application filed July 18, 1916. Serial No. 109,917.

arrester easily accessible for inspection or offset portion H PatentedApr. 24, 1917.

That part of the smoke box immediately in front of the smoke stack 11 isinclosed' with the inner periphery of the smoke box.

A pair of ofl set straps 20 are rigidly secured to the smoke box 10adjacent to the baffle wall 19 and theflange 16, and carry a pluralityof longitudinally extending bars 21 operatively supporting a pluralityof transversely extending and angularly disposed bars 22 on which thebaffle plates 23 are rigidly mounted.

These baflie plates are made of wire netting and the adjacent rows ofthe said baffie plates'are angularly disposed in opposite direction andstaggered relatively to each other.

The assembly of the spark arrester will be readily understood from theforegoing description.

When a boiler fitted with a spark arrester of this description is in usethe products of combustion from the fire box are delivered through thetubes into the smoke box 10 and passing beneath the offset portion 15 ofthe plate 12 pass up through between the baffle plates 23 and thencethrough the bafile wall of wire netting 19'and are delivered to thesmoke stack 11.

During the passage of the products of combustion through the smoke box10 the cinders are deflected backwardly and forwardlyas. often aspossibly by the baffle plates 23 so that when the cinders are finallydelivered to the smoke stack 11 they will be extinguished.

Should any of the cinders remain glowing after passing the baffle plates23 they will on impact with the perforated wall 19 be again deflectedand extinguished before they reach the smoke stack.

, From this description it will be seen that I have invented a sparkarrester simple of construction and capable of being readily mounted inthe smoke box of a boiler, the

several parts being easily accessible in case ter contained in theaccompanying specification and drawings shall be interpreted asillustrative and not in a limiting sense.

What I claim as my invention is:

The combination with a boiler of a spark arrester consisting of a batlleWall extending transversely across the upper portion of the smoke box ofthe boiler and provided. with a loWer offset portion of substantially V-shape, having a flange therearound, a curved perforated bafiie Walllocated in front of the said baffle Wall and coacting therewith, a pairof Vertically disposed Copies of this patent may be obtained for strapsadjacent battle wall, a plurality of pairs of longitudinal extendingbars carried thereby, a plurality of transverse bars carried by pairs ofsaid longitudinal bars angularly disposed thereon and perforated baflicplates carried by said transverse bars in front of the perforated bafiieWall, the adjacent rows of said plates being angularly disposed inopposite directions and staggored relatively to each other.

In Witness whereof I have hereunto set my hand ALBERT EDMUND HUDSON.

five cents each, by addressing the Commissioner of Patents,

Washington, D. 6."

